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Plugging agent as well as preparation method and application thereof
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A plugging agent and reactor technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of relative density, viscosity, high asphalt colloid content, complex components of aging oil, and difficulties in harmless treatment, etc. problems, to achieve the effects of improving mechanical strength, saving profile control costs, and good application prospects
Active Publication Date: 2017-06-13
PETROCHINA CO LTD
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Problems solved by technology
Liaohe Oilfield produces a large amount of sludge every year. Due to its complex composition, it is difficult to separate the silica sludge. The existing technology has high treatment costs and is difficult to treat innocuously. , Sewage oil in the recoverypool of the sewage treatment station, and the intermediate transition layer of the oil-water interface of the dehydrator produce a large amount of aging oil. The composition of the aging oil is complex, and its relative density, viscosity, and asphaltcolloid content are high. Colloidal asphaltenes also contain relatively high calcium, sodium, magnesium and other metals, these components cause high water content in aging oil and difficult dehydration
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Embodiment 1
[0031] This embodiment provides a kind of plugging adjusting agent, by weight percentage, the raw material component of this plugging adjusting agent comprises:
[0032]
[0033] This embodiment also provides a preparation method of the above-mentioned plugging agent, and weighs the raw material components according to the above-mentioned ratio. The preparation method includes the following steps:
[0034] Step 1: Add the silica mud and aging oil into the reaction kettle, stir evenly at room temperature, the stirring time is 15min, and the stirring speed is 250rpm;
[0035] Step 2, add vermiculite powder and walnut shell powder to the reaction kettle, stir evenly at room temperature, the stirring time is 7min, and the stirring speed is 250rpm;
[0036] Step 3: Heat up the reaction kettle, and add sulfonated pitch powder, KYPAM-3S, polyanionic cellulose and sodium α-olefin sulfonate into the reaction kettle, stir well, the stirring time is 13min, the stirring speed is 250rpm...
Embodiment 2
[0050] This embodiment provides a kind of plugging adjusting agent, by weight percentage, the raw material component of this plugging adjusting agent comprises:
[0051]
[0052] This embodiment also provides a preparation method of the above-mentioned plugging agent, and weighs the raw material components according to the above-mentioned ratio. The preparation method includes the following steps:
[0053]Step 1: Add the silica mud and aging oil into the reaction kettle, stir evenly at room temperature, the stirring time is 12min, and the stirring speed is 200rpm;
[0054] Step 2, add vermiculite powder and walnut shell powder to the reaction kettle, stir evenly at room temperature, the stirring time is 6min, and the stirring speed is 200rpm;
[0055] Step 3: Heat up the reactor, and add sulfonated asphalt powder, KYPAM-4S, carboxymethyl cellulose, polyanionic cellulose and sodium α-olefin sulfonate into the reactor, stir evenly, the stirring time is 10min, stir The rotati...
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Abstract
The invention provides a plugging agent as well as a preparation method and application thereof. The plugging agent is prepared from the following components in percentage by weight: 8-15 percent of siliconsludge, 5-10 percent of aging oil, 1-3 percent of vermiculitepowder, 2-4 percent of walnut shell powder, 1-3 percent of sulfonated asphaltpowder, 0.3-0.8 percent of a KYPAM polymer, 0.2-0.6 percent of anionic celluloseether, 0.2-0.5 percent of sodium alpha-olefinsulfonate and the balance of water. The plugging agent and the preparation method thereof provided by the invention can reuse the siliconsludge and aging oil resources; and meanwhile, the prepared plugging agent has good performances of temperature resistance, salt resistance and the like and can be completely suitable for technical application of profile control and water plugging of a high-temperature and high-salt oil-water reservoir well.
Description
technical field [0001] The invention belongs to the technical field of oil-water well profile control and water shutoff, and relates to a plugging control agent and a preparation method and application thereof. Background technique [0002] Silica sludge is the product of sewage sludge after technological treatment. Sludge refers to oil tanks, settling tanks, sewage tanks, grease traps, bottom mud of landing tanks in oil productionplant joint stations, and landing sludge produced by drilling, operation, and pipeline perforation. . Silica mud has become one of the main pollutants produced during oilfield development. In recent years, due to the gradual improvement of my country's environmental protection regulations and the requirements of the group company to create green development, the issue of silica mud treatment has increasingly attracted people's attention. Liaohe Oilfield produces a large amount of sludge every year. Due to its complex composition, it is difficult...
Claims
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Application Information
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